Mining machine



ct. 24, 1933. I L, E SIMMONS 1,931,560

MINING MACHINE Filed May 12, 1932 mi L@ W ww L@ i@ IW ya@ Kw1' Lean/E Sllmwmmv,

`liifetied oi.24,1933 l 1,931,560

UNirEo smits PATENT OFFICE MINING MACHINE Leon E. Simmons, Claremont, N. H., assignor to SullivanV Machinery Company, a .corporation of Massachusetts Application May 12, 1932. serial No. 610,888

17 claims. (01262-30) This invention relates to mining machines, and above the cutter bar is a horizontal motor- 9 `herel more particularly to improvements in cutter bars in having its pOWeI Shaft 10 extending longituof such machines. dinaily of the machine. Fixed to the rearward An object of this invention is to provide an end of the motor power shaft'is a bevel pinion` 5 improved mining machine cutter bar. yAnother l1 meshing with a bevel gear 12 keyed to a ver- 60 object is to provide an improved cutter bar of tical Shaft 13S1litab1yj0u1na1ed Within the 1112.- more rugged construction andvless expensive to Chine bOdY. ROtatable With and dliVen by the manufacture than heretofore. Still another ob- Shaft 13 iSaSDui pinion 14 meshing With a large ject is to provide a cutter bar oi an improved Spill geal 15 vCOIlneCtibe 'Oy a Clutch 16, 0f the l0 construction whereby, while retaining all the adwell-known Sliding Din type, t0' a Cutte Chain 65 vantages ofl cutter bars of previous design, a comdriving Sprocket-F7- The SDTOCket 17 iS arranged paratively simple and less expensive construction within the rear end of the machine body, and is obtained. A still further object is to provide this Sprocket engages and drives an endless cutimproved means for attaching the mining ma-l ter bit carrying cutter chain 18 mounted on the 15 chine Cutter bar to the .body of the 'machine margin of the cutter -bar for circulation there-A 70 These and other objects of this invention will, about. The machine is fed and guided through however, hereinafter more fully appear in the haulage drums and Cooperating draft cablesin course of the following description, and as more the manner Cleaffly deSOribed in the ahOVe menparticularly pointed out-in the appended claims. tiened YHOlIneS patent.

20 In the accompanying drawing, there is shown Now referringto the improved cutter bar struc- 75 for purposes of illustration, one iorm which the ture, it will benoted that formed on the bottom invention may assume inpractice. "of the motor` casing at 19 is a longitudinal slot In this drawing,- orv groove, while formed on the upper surface of Fig. 1 is a longitudinal vertical sectional viewv the detaehable httomplate 20 of the machine taken through a coal mining machine having body is a similar slot or groove 21, these grooves 80* embodied therein theillustration embodiment of being arranged at the longitudinal vertical centhe cutterbar construction, parts being shown tei0f ,the machine and extending rearwardlyin in elevation to facilitate illustration. the manner shown in Fig- 1. r Seated--withinV Fig. 2 is a plan View Aof theimproved cutter theseslets and heldin DOSitiOnbY belts 22, which bar, a, portion ef the Cutter par support; being also are utilized to attach the bottom plate-20 85 shown in horizontal section. in position, isfa vguiding and positioning block Fig. 3 is a transverse verticalv sectional view 23 -vv The Qutterzbar 7 comprises top and bottom taken substantially on line 3 3 of Fig..1. Plates 24 and'-25. arranged in Vertical spaced AIn this illustrative `embodiment of the invenrelation Yby means of spacing blocks or bar clef v tion the improved-cutter bar construction is ema ments 26, 26, the plates 24, 25 and blocks r26 90 bodied in a coal mining machine generally des-Y being rigidly secured together as by rivets 27.l ignated 4, of a standard construction, herein of The inner Surfaces Of the plates 24,r 25 are PIO- the ilexibly fed, continuous cutter type, although vided withy grOOVeS 28, 28 eXtending abOut the it is evident that the improved cutter bar struc-Y bal', and Which COOPeIate t0 fOIln a guideWay 40 ture may be embodied in mining machines ef vorrchannel for the cutter chain 18, as is well 95 various other types. In,y this instance the min-y understood by those skilled in the art. In thisv ing machinefl is of the same general design as improvedconstruction.the top and bottom plates that disclosed in a copending application of one are longitudinally slotted at 29, 29 for receiv- Merris P. Holmes, ser. 10.367,895, iiied bnine 3,; ing theblock 23, the slots each having closed 1929, now matured in Patent ltd-1,875,336, grantends, i. e, openingl at neither end through an 100 ed Sept. 6, 1932, and comprises a` body-5 having extremity of the plate in which they are formed.` a plane bottom surface 6 adapted `to rest upon The block 23 is provided with lateral ledges 30, and slide in any direction over the mine floor. 30 extending along its length and the ledges pro.- Secured within the machine body and projectject within grooves 31, 31, formed by the plates ing forwardly lengthwise of the machine is the 24, 25 andspacing blocks 26, therebyfcooperatfy 10.5

improved cutter bar 'l having an improved suping to support the cutter bar. porting structure, generally designated 8, where- Means is afforded for adjusting the cutter ybar by the cutter bar is adjustably secured ywithin longitudinally relative to the block 23 to effect the machine body in an improved manner. Aradjustment of the tension oi the cutter chain,

ranged withinthe machine body andV located and this 4adjusting means comprises an adjust 110 ing screw 32 housed within the cutter bar and threadedly connected at 33 within a projection 34 formed integral with the block 23, as shown in Fig. l. This adjusting screw is journaled within a bearing member 35 attached to the cutter bar, and is provided with a head 36 provided with openings 37for the reception of a suitable turning instrument, the top plate 24 of the cutter bar being slotted at 38 to permit insertion of the turning instrument within the openings 37. It will thus be seen that upon rotation of the adjusting screw, the latter is threaded inwardly and outwardly relative to the threaded projection 34, thereby to move the cutter bar longitudinally either inwardly or outwardly relative to the` block 23. When it is desired to remove the cutter bar from the machine body, the machine is turned on its side, and 'the screws 22 removed, thereby permitting longitudinal withdrawal of the cutter bar and block 23 from the machine body, the block 23 sliding outwardly along the slots 19, 2l during withdrawal of the cutter bar. Y From the foregoing description, it is clearly evident that an improved cutter bar is provided,

of an exceedingly simple and rugged construction, the main body of the bar consisting only of the top and bottom plates and cooperating spacing membersheld in position by the guiding and positioning block 23. Further, by the provision of the improved bar supporting and-positioning means, it is possible to provide a cutter bar of simple andrugged construction and with a relatively small amount of machining of the parts, the cutter bar being held in position by theguide block, and the latter constituting the sole element for supporting and positioning the bar within the machine body. rlhese and other advantages of the improved cutter bar structure will be clearlyapparent to those skilled in the art. Y

While thereis in this application speciiically` deescribed one form which the invention may assumeV in practice, it will be understood that thisio'rm of the same is shown for purposes of illustration and that the invention may be modiiied and embodied in various other forms without departing from its vspirit or the scope of thev appended claims. v v

vWhat claimas new and desire to secure by Letters Patent is:

1. A mining machine cutter and bottom plates having longitudinal slots therein and bar supporting means including a supportv having parallel frame portions and a guiding and positioning block arranged within said slots and interposed between and rigidly secured to said frame portions, said 'guiding and positioning block being releasable 4from said frame portions for withdrawal with said bar longitudinally from between said portions while the latter retain their normal space relation.

v2. A mining machine cutter bar including Vtop and bottom plates having longitudinal slots therein `and bar supporting means including a bar including' topy supporting means including a support havingV parallel frame portions and a supporting and positioning block arranged within said slots and interposed between and rigidly secured to said frame portions, said block having lateral ledges cooperating with said spacing members and plates, and means arranged between said block and bar for adjusting said `bar'in a longitudinal direction relative to said block.

5. In a mining machine, a machine body, spaced portions of the body having formed therein longitudinally extending grooves, a guiding and positioning block seated in said grooves and rigidly secured to the body, and a cutter bar having formed therein a longitudinalr slot for receiving said guide block. Y

6. In a mining machine, a machine body, spaced portions of the body having formed therein longitudinally extending grooves, a-guiding and positioning block seated in said grooves and rigidly secured to the body, a cutter bar, having formed T therein a longitudinal slot for receiving said guide block, and means between the cutter bar and guide block for adjusting ythe bar in a longitudinal direction relative to the machine body;

'7. A mining machine cutter bar including top l and bottom plates having openings therein and bar supporting means including a support having parallel frame portions and aguiding and positioning member arranged withinV saidl openings and interposed between and rigidly secured to said frame' portions, said guiding and positioning member being releasable from said frame portions for withdrawal with `said bar longitudinally fromV between said portions while the latter retaintheir normal space relation.' 1

8. A mining machine cutter barhaving a lon gitudinal slot between its ends, said slot having both its ends closed, and bar supporting means comprising asupport and a bar positioning and guiding block attached to said support and exi tending vertically through said slot.

9. A mining machine cutter bar having a longitudinal slot between-its ends, said slot havingboth its ends closed,l bar supporting means comprising a support and a bar'positioning and guidl. i

ing block attached to said support and extending vertically through said slot, and means arranged between said block and bar-foradjusting Vsaid bar longitudinally relative to said support, said-bar sliding longitudinally along said block'during 1 such adjustment.

10. A mining machine cutter bar having a longitudinal slot between its ends, said 'slot having both its ends closed, bar supportingmeans comprising a support and a bar positioning and guiding block attached to said support andi extending vertically through said slot, and means arranged between said block and bar for adjusting said bar longitudinally relative to said support, said block having guides tting in guideways on said bar ist and said bar sliding along said block guides during such adjustment.

11. A mining machine cutter bar having a longitudinal slot between its ends, said slot having both its ends closed, and bar supporting means comprising a support and a bar positioning and guiding block attached to said supporty and extending` vertically through said slot, said block havinga series of transverse openings and screws extending through said openings and attached to said support for rigidly securing said block to said support.

12. A mining machine cutter bar having a longitudinal slot between its ends, said slot having both its ends closed, and bar supporting means comprising a support and a bar positioning and guiding block attached to said support andextending vertically through said slot, said block having a series of transverse openings and screws extending through said openings and attached to said support for rigidly securing said block to' said support, said support having formed therein a longitudinal groove and a projection extending longitudinally of said block and tting said groove.

13. A mining machine cutter bar having a longitudinal slot between its ends, said slot having both its ends closed, and bar supporting means comprising a vsupport and a bar positioning and guiding block attached to said support andextending vertically through saidl slot, said block having a series of transverse openings and screws extending through said openings and attached to said support for rigidly securing said clock to said support, said support having formed therein a longitudinal groove and a projection extending longitudinally of said block and tting said groove, said block slidable longitudinally relative to said support upon withdrawal of the block from said support.

14. A mining machine cutter bar having a longitudinal slot between its ends, said slot having both its ends closed, and bar supporting means comprising a support and a bar positioning and guiding block attached to said support and extending vertically through said slot, said support having spaced frame portions between which said block is interposed, said frame portions havtudinally relative to the'support uponlwithdrawal of said block from saidsupport.

16. A mining machine cutter bar comprising spaced upper and lower plates, each having a longitudinal slot lbetween its ends, the slot in the upper plate extending co-extensively with the slot in the lower plate and each of said slotshaving closed ends, and bar supporting means comprising a support having spaced frame portions and a guiding and positioning block interposed between and rigidly attached to said frame portions and extending through said slots.

` 17. A mining machine .cutter bar comprising spaced upper and lower plates, each having a longitudinal slot between its ends, the slot in the upper plate extending co-extensively with the slot in the lower plate and each of said slots having closed ends, bar supporting means comprising a support having spaced frame portions and a guiding and positioning block interposed between and rigidly attached to said frame portions and extending through said slots, and means for adjusting said bar relative to said block, said slots being elongated to permit such adjustment.

LEON E. SIMMONS. 

